Diagnose me

Baby boy is 8 months on the 10th exclusively breast fed until 6 months then started solids now is nursing along with eating 3 meals a day. I am still pumping like I was prior to the solids. I started having EWCM about 18 days ago, lasted for 3 days I thought it was my first postpartum cycle. So then about 3 days after that I had my first PP period but not like I expected. More spotting and brown. Lasted 3 days. Flow never got to light or even medium. It should be CD 14 if I count the first spotting day as CD1. So I am having extreme bouts of nausea, tiredness and sensitive nipples and the wondfo I took yesterday was negative. I don’t know what is wrong with me.